SchemaNode constructor doesn't accept typ as a keyword argument

[danwerner]

Constructing SchemaNodes as follows:

colander.SchemaNode(typ=colander.Integer)

Leads to a "NotImplementedError: SchemaNode construction without a typ argument ...". Ideally, the SchemaNode constructor would have code somewhat like this:

if arg:
    self.typ = arg[0]
    _add_node_children(self, arg[1:])
elif 'typ' in kw:
    self.typ = kw['typ']
else:
    self.typ = self.schema_type()

That would allow constructing SchemaNodes from dictionaries of arbitrary keyword arguments.

[jayd3e]

My only critique would be that instead of using 'typ' as the keyword, we should use 'type_'. As it is more clear.

[danwerner]

Just noticed: In my example, instead of kw['typ'], it should probably be kw.pop('typ').

[jayd3e]

Good catch, will change that.